These books are 99c on the weekend of 12-13 September

These books are 99c over the weekend of 12-13 September, and sometimes at other times as well.

This promo is free to participating authors. I put my own time into running it, but there are real costs involved. The success of the promo means I've had to upgrade my server host and pay ever-increasing amounts for mailing list maintenance. If you appreciate the promo, a small donation will be welcome.